Antibacterial desalting pipe and application thereof to salt-alkali soil desalting

Abstract

The invention provides an antibacterial desalting pipe which comprises a hidden pipe and water permeable layers. The water permeable layers comprise the lower water permeable layer and the upper water permeable layer. The invention further provides application of the antibacterial desalting pipe to salt-alkali soil desalting. The desalting pipe is high in resistance to mildew and has an antibacterial rate of 90.0% or above; the desalting pipe is high in water permeability and is not prone to blockage and extremely low in blockage rate; after the improvement is conducted for 1 year by means of the desalting pipe, the salt content in soil which is 0-30 cm deep of salt-alkali soil is controlled to be 0.18% or below, the exchangeable sodium percentage (ESP) is controlled to be 6-9%, and the soil conductivity is controlled to be 3.6 ms / cm or below; after the salt-alkali soil is improved by means of the desalting pipe, the plant survival rate is high, and the disease resistance is strong; the disease resistance of black pine to common diseases such as brown leaf rust and leaf blight is high.

Description

technical field [0001] The invention belongs to the technical field of saline-alkali land improvement, and in particular relates to an antibacterial salt discharge pipe and its application in saline-alkali land salt discharge. Background technique [0002] At the beginning of the 20th century, open ditches or hidden pipes were used in low-lying areas to discharge excess underground water, and agricultural production was developed, and good yield results were achieved. On this basis, in 1959, the Netherlands first adopted the technology of underground pipe salt drainage to successfully control saline-alkali land. After that, it was quickly promoted in the United States, Denmark, Israel and other countries. my country began to adopt the technology of plastic underground pipe stain reduction and desalination in the 1980s, and it was implemented successively in Jiangsu, Tianjin, Xinjiang and other places. Underground pipe salt drainage is widely promoted as an important measure ...

AI Technical Summary

Problems solved by technology

[0003] 1. Using the existing salt discharge pipe, the salt discharge pipe has poor resistance to mold and low antibacterial rate; and the salt discharge pipe has poor water permeability, is easy to block, and has a high clogging rate;

[0004] 2. After the improvement of saline-alkali land with the existing salt discharge pipe, the salt content, alkalization degree ESP, and soil conductivity in the 0-30cm soil of saline-alkali land are high, which is not conducive to plant growth;

[0005] 3. After improving the saline-alkali land with the existing salt discharge pipe, the plant survival rate is low and the disease resistance is poor

[0006] In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve

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